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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: DumpFunction.html 409 2014-08-18 16:46:48Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.cli.func;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.io.PrintWriter;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.util.Arrays;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.util.Collection;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.util.List;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.util.Map;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.util.NavigableMap;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.util.NavigableSet;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.jsimpledb.JObject;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.jsimpledb.cli.CliSession;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.jsimpledb.core.CounterField;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import org.jsimpledb.core.Field;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.jsimpledb.core.FieldSwitchAdapter;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.jsimpledb.core.FieldType;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.jsimpledb.core.ListField;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.jsimpledb.core.MapField;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.jsimpledb.core.ObjId;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.jsimpledb.core.SetField;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.jsimpledb.core.SimpleField;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.jsimpledb.core.Transaction;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.jsimpledb.parse.ObjInfo;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.jsimpledb.parse.expr.EvalException;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.jsimpledb.parse.expr.Value;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.jsimpledb.parse.func.Function;<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>@Function<a name="line.35"></a>
<span class="sourceLineNo">036</span>public class DumpFunction extends SimpleCliFunction {<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>    public DumpFunction() {<a name="line.38"></a>
<span class="sourceLineNo">039</span>        super("dump", 1, 1);<a name="line.39"></a>
<span class="sourceLineNo">040</span>    }<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>    @Override<a name="line.42"></a>
<span class="sourceLineNo">043</span>    public String getHelpSummary() {<a name="line.43"></a>
<span class="sourceLineNo">044</span>        return "prints all fields of the given object to the console";<a name="line.44"></a>
<span class="sourceLineNo">045</span>    }<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span>    @Override<a name="line.47"></a>
<span class="sourceLineNo">048</span>    public String getUsage() {<a name="line.48"></a>
<span class="sourceLineNo">049</span>        return "dump(expr)";<a name="line.49"></a>
<span class="sourceLineNo">050</span>    }<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>    @Override<a name="line.52"></a>
<span class="sourceLineNo">053</span>    protected Value apply(CliSession session, Value[] params) {<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>        // Get object<a name="line.55"></a>
<span class="sourceLineNo">056</span>        Object obj = params[0].checkNotNull(session, "dump()");<a name="line.56"></a>
<span class="sourceLineNo">057</span>        if (obj instanceof JObject)<a name="line.57"></a>
<span class="sourceLineNo">058</span>            obj = ((JObject)obj).getObjId();<a name="line.58"></a>
<span class="sourceLineNo">059</span>        else if (!(obj instanceof ObjId))<a name="line.59"></a>
<span class="sourceLineNo">060</span>            throw new EvalException("invalid dump() operation on non-database object of type " + obj.getClass().getName());<a name="line.60"></a>
<span class="sourceLineNo">061</span>        final ObjId id = (ObjId)obj;<a name="line.61"></a>
<span class="sourceLineNo">062</span><a name="line.62"></a>
<span class="sourceLineNo">063</span>        // Dump object<a name="line.63"></a>
<span class="sourceLineNo">064</span>        this.dump(session, id);<a name="line.64"></a>
<span class="sourceLineNo">065</span><a name="line.65"></a>
<span class="sourceLineNo">066</span>        // Done<a name="line.66"></a>
<span class="sourceLineNo">067</span>        return Value.NO_VALUE;<a name="line.67"></a>
<span class="sourceLineNo">068</span>    }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>    private void dump(final CliSession session, final ObjId id) {<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span>        // Get transaction and console writer<a name="line.72"></a>
<span class="sourceLineNo">073</span>        final Transaction tx = session.getTransaction();<a name="line.73"></a>
<span class="sourceLineNo">074</span>        final PrintWriter writer = session.getWriter();<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span>        // Verify object exists<a name="line.76"></a>
<span class="sourceLineNo">077</span>        final ObjInfo info = ObjInfo.getObjInfo(session, id);<a name="line.77"></a>
<span class="sourceLineNo">078</span>        if (info == null) {<a name="line.78"></a>
<span class="sourceLineNo">079</span>            writer.println("object " + id + " (does not exist)");<a name="line.79"></a>
<span class="sourceLineNo">080</span>            return;<a name="line.80"></a>
<span class="sourceLineNo">081</span>        }<a name="line.81"></a>
<span class="sourceLineNo">082</span><a name="line.82"></a>
<span class="sourceLineNo">083</span>        // Print headline<a name="line.83"></a>
<span class="sourceLineNo">084</span>        writer.println("object " + info);<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>        // Calculate indent amount<a name="line.86"></a>
<span class="sourceLineNo">087</span>        int nameFieldSize = 0;<a name="line.87"></a>
<span class="sourceLineNo">088</span>        for (Field&lt;?&gt; field : info.getObjType().getFields().values())<a name="line.88"></a>
<span class="sourceLineNo">089</span>            nameFieldSize = Math.max(nameFieldSize, field.getName().length());<a name="line.89"></a>
<span class="sourceLineNo">090</span>        final char[] ichars = new char[nameFieldSize + 3];<a name="line.90"></a>
<span class="sourceLineNo">091</span>        Arrays.fill(ichars, ' ');<a name="line.91"></a>
<span class="sourceLineNo">092</span>        final String indent = new String(ichars);<a name="line.92"></a>
<span class="sourceLineNo">093</span>        final String eindent = indent + "  ";<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span>        // Display fields<a name="line.95"></a>
<span class="sourceLineNo">096</span>        for (Field&lt;?&gt; field : info.getObjType().getFields().values()) {<a name="line.96"></a>
<span class="sourceLineNo">097</span>            writer.print(String.format("%" + nameFieldSize + "s = ", field.getName()));<a name="line.97"></a>
<span class="sourceLineNo">098</span>            field.visit(new FieldSwitchAdapter&lt;Void&gt;() {<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span>                @Override<a name="line.100"></a>
<span class="sourceLineNo">101</span>                public &lt;T&gt; Void caseSimpleField(SimpleField&lt;T&gt; field) {<a name="line.101"></a>
<span class="sourceLineNo">102</span>                    final FieldType&lt;T&gt; fieldType = field.getFieldType();<a name="line.102"></a>
<span class="sourceLineNo">103</span>                    writer.println(fieldType.toParseableString(<a name="line.103"></a>
<span class="sourceLineNo">104</span>                      fieldType.validate(tx.readSimpleField(id, field.getStorageId(), false))));<a name="line.104"></a>
<span class="sourceLineNo">105</span>                    return null;<a name="line.105"></a>
<span class="sourceLineNo">106</span>                }<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span>                @Override<a name="line.108"></a>
<span class="sourceLineNo">109</span>                public Void caseCounterField(CounterField field) {<a name="line.109"></a>
<span class="sourceLineNo">110</span>                    writer.println("" + tx.readCounterField(id, field.getStorageId(), false));<a name="line.110"></a>
<span class="sourceLineNo">111</span>                    return null;<a name="line.111"></a>
<span class="sourceLineNo">112</span>                }<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span>                @Override<a name="line.114"></a>
<span class="sourceLineNo">115</span>                @SuppressWarnings("unchecked")<a name="line.115"></a>
<span class="sourceLineNo">116</span>                public &lt;E&gt; Void caseSetField(SetField&lt;E&gt; field) {<a name="line.116"></a>
<span class="sourceLineNo">117</span>                    this.handleCollection((NavigableSet&lt;E&gt;)tx.readSetField(id, field.getStorageId(), false),<a name="line.117"></a>
<span class="sourceLineNo">118</span>                      field.getElementField(), false);<a name="line.118"></a>
<span class="sourceLineNo">119</span>                    return null;<a name="line.119"></a>
<span class="sourceLineNo">120</span>                }<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span>                @Override<a name="line.122"></a>
<span class="sourceLineNo">123</span>                @SuppressWarnings("unchecked")<a name="line.123"></a>
<span class="sourceLineNo">124</span>                public &lt;E&gt; Void caseListField(ListField&lt;E&gt; field) {<a name="line.124"></a>
<span class="sourceLineNo">125</span>                    this.handleCollection((List&lt;E&gt;)tx.readListField(id, field.getStorageId(), false),<a name="line.125"></a>
<span class="sourceLineNo">126</span>                      field.getElementField(), true);<a name="line.126"></a>
<span class="sourceLineNo">127</span>                    return null;<a name="line.127"></a>
<span class="sourceLineNo">128</span>                }<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span>                private &lt;E&gt; void handleCollection(Collection&lt;E&gt; items, SimpleField&lt;E&gt; elementField, boolean showIndex) {<a name="line.130"></a>
<span class="sourceLineNo">131</span>                    final FieldType&lt;E&gt; fieldType = elementField.getFieldType();<a name="line.131"></a>
<span class="sourceLineNo">132</span>                    writer.println("{");<a name="line.132"></a>
<span class="sourceLineNo">133</span>                    int count = 0;<a name="line.133"></a>
<span class="sourceLineNo">134</span>                    for (E item : items) {<a name="line.134"></a>
<span class="sourceLineNo">135</span>                        if (count &gt;= session.getLineLimit()) {<a name="line.135"></a>
<span class="sourceLineNo">136</span>                            writer.println(eindent + "...");<a name="line.136"></a>
<span class="sourceLineNo">137</span>                            break;<a name="line.137"></a>
<span class="sourceLineNo">138</span>                        }<a name="line.138"></a>
<span class="sourceLineNo">139</span>                        writer.print(eindent);<a name="line.139"></a>
<span class="sourceLineNo">140</span>                        if (showIndex)<a name="line.140"></a>
<span class="sourceLineNo">141</span>                            writer.print("[" + count + "] ");<a name="line.141"></a>
<span class="sourceLineNo">142</span>                        writer.println(fieldType.toParseableString(item));<a name="line.142"></a>
<span class="sourceLineNo">143</span>                        count++;<a name="line.143"></a>
<span class="sourceLineNo">144</span>                    }<a name="line.144"></a>
<span class="sourceLineNo">145</span>                    writer.println(indent + "}");<a name="line.145"></a>
<span class="sourceLineNo">146</span>                }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span>                @Override<a name="line.148"></a>
<span class="sourceLineNo">149</span>                @SuppressWarnings("unchecked")<a name="line.149"></a>
<span class="sourceLineNo">150</span>                public &lt;K, V&gt; Void caseMapField(MapField&lt;K, V&gt; field) {<a name="line.150"></a>
<span class="sourceLineNo">151</span>                    final FieldType&lt;K&gt; keyFieldType = field.getKeyField().getFieldType();<a name="line.151"></a>
<span class="sourceLineNo">152</span>                    final FieldType&lt;V&gt; valueFieldType = field.getValueField().getFieldType();<a name="line.152"></a>
<span class="sourceLineNo">153</span>                    writer.println("{");<a name="line.153"></a>
<span class="sourceLineNo">154</span>                    int count = 0;<a name="line.154"></a>
<span class="sourceLineNo">155</span>                    final NavigableMap&lt;K, V&gt; map = (NavigableMap&lt;K, V&gt;)tx.readMapField(id, field.getStorageId(), false);<a name="line.155"></a>
<span class="sourceLineNo">156</span>                    for (Map.Entry&lt;K, V&gt; entry : map.entrySet()) {<a name="line.156"></a>
<span class="sourceLineNo">157</span>                        if (count &gt;= session.getLineLimit()) {<a name="line.157"></a>
<span class="sourceLineNo">158</span>                            writer.println(eindent + "...");<a name="line.158"></a>
<span class="sourceLineNo">159</span>                            break;<a name="line.159"></a>
<span class="sourceLineNo">160</span>                        }<a name="line.160"></a>
<span class="sourceLineNo">161</span>                        writer.println(eindent + keyFieldType.toParseableString(entry.getKey())<a name="line.161"></a>
<span class="sourceLineNo">162</span>                          + " -&gt; " + valueFieldType.toParseableString(entry.getValue()));<a name="line.162"></a>
<span class="sourceLineNo">163</span>                        count++;<a name="line.163"></a>
<span class="sourceLineNo">164</span>                    }<a name="line.164"></a>
<span class="sourceLineNo">165</span>                    writer.println(indent + "}");<a name="line.165"></a>
<span class="sourceLineNo">166</span>                    return null;<a name="line.166"></a>
<span class="sourceLineNo">167</span>                }<a name="line.167"></a>
<span class="sourceLineNo">168</span>            });<a name="line.168"></a>
<span class="sourceLineNo">169</span>        }<a name="line.169"></a>
<span class="sourceLineNo">170</span>    }<a name="line.170"></a>
<span class="sourceLineNo">171</span>}<a name="line.171"></a>
<span class="sourceLineNo">172</span><a name="line.172"></a>




























































</pre>
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